Journal article

Echocardiographic assessment of raised pulmonary vascular resistance: application to diagnosis and follow-up of pulmonary hypertension

Arun Dahiya, William Vollbon, Christine Jellis, David Prior, Sudhir Wahi, Thomas Marwick

Heart | B M J PUBLISHING GROUP | Published : 2010

Abstract

OBJECTIVE: To optimise an echocardiographic estimation of pulmonary vascular resistance (PVR(e)) for diagnosis and follow-up of pulmonary hypertension (PHT). DESIGN: Cross-sectional study. SETTING: Tertiary referral centre. PATIENTS: Patients undergoing right heart catheterisation and echocardiography for assessment of suspected PHT. METHODS: PVR(e) ([tricuspid regurgitation velocity ×10/(right ventricular outflow tract velocity-time integral+0.16) and invasive PVR(i) ((mean pulmonary artery systolic pressure-wedge pressure)/cardiac output) were compared in 72 patients. Other echo data included right ventricular systolic pressure (RVSP), estimated right atrial pressure, and E/e' ratio. Diffe..

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